CN106088313A - Simply supported beam method is encorbelmented vestibule form bracing system construction technology - Google Patents
Simply supported beam method is encorbelmented vestibule form bracing system construction technology Download PDFInfo
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- CN106088313A CN106088313A CN201610461793.6A CN201610461793A CN106088313A CN 106088313 A CN106088313 A CN 106088313A CN 201610461793 A CN201610461793 A CN 201610461793A CN 106088313 A CN106088313 A CN 106088313A
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- steel
- bar
- vertical rod
- encorbelmenting
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/0046—Loggias
Abstract
The invention discloses a kind of simply supported beam method to encorbelment vestibule form bracing system construction technology, comprise the following steps: that (1) I-steel pressure ring of encorbelmenting is pre-buried；(2) freely-supported I-steel selects, welds；(3) freely-supported I-steel lifting；(4) I-steel of encorbelmenting lifts；(5) form bracing system is set up；(6) reinforcement installation；(7) concreting；(8) simply supported beam form bracing system is removed.The technique of the present invention, by setting up simply supported beam, reduces support system cantilever span, reduces moment, thus shortens support body cantilever span, reaches to meet the form bracing system supporting load.
Description
Technical field
The present invention relates to a kind of simply supported beam method encorbelment vestibule form bracing system construction technology, belong to building construction technology neck
Territory.
Background technology
In recent years, executive information systems generally can arrange fire-fighting vestibule to meet fire protection requirement, usual fire-fighting
Vestibule can be close to building causes form bracing system cantilever span less.And along with various change of design, away from building
Fire-fighting vestibule also start occur, the form bracing system for relatively large cantilever distance has certain difficulty of construction.Therefore must
A kind of fire-fighting vestibule form bracing system being applicable to this type of situation must be worked out.
Summary of the invention
The technical problem to be solved is: provide a kind of simply supported beam method to encorbelment vestibule form bracing system construction work
Skill.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
The simply supported beam method that the present invention provides is encorbelmented vestibule form bracing system construction technology, comprises the following steps:
(1) I-steel pressure ring of encorbelmenting is pre-buried
Needing to install the floor of I-steel of encorbelmenting, to carry out pressure ring in advance pre-buried, U-shaped reinforcing bar draw ring diameter 16mm.
(2) freely-supported I-steel selects, welds
According to drawing and design requirement, select two 20a# I-steel of sufficient length to stack and arrange as freely-supported I-steel, by two
Root I-steel firm welding forms entirety.
(3) freely-supported I-steel lifting
Utilize tower crane that the I-steel welded lifting is set up the floor of I-steel of encorbelmenting to needs and is fixed, take with structure
Spreading degree 400mm, it is ensured that freely-supported I-steel stability in the large.
(4) I-steel of encorbelmenting lifts
I-steel of encorbelmenting lifts successively to installing I-steel floor, and is ridden upon front end on freely-supported I-steel, and end is adopted
Fix with the most pre-buried good pressure ring.
(5) form bracing system is set up
1) steel bar end of a length of 50mm diameter phi 25 of support shuttering vertical rod base employing is welded on and encorbelments on I-steel, sets up frame
Vertical rod being inserted in during body, effectively prevent vertical rod from moving, then add bar of sweeping the floor, the steel pipe scaffold stability of support shuttering is had
Effect controls.
2) inclination angle of bridging brace and horizontal plane is between 45 °-60 °.Bridging is with vertical rod, vertical and horizontal horizon bar
Set up Deng synchronization.Brace rotary buckle buckles with vertical rod or transverse horizontal bar.
3) vertically and horizontally horizon bar right-angle coupler is buckled on column, stretches out inside and outside vertical rod no less than 100mm, vertical equity bar
Being placed in above transverse horizontal bar, longitudinal cross bar of inner outer vertical rod is fixed with vertical rod with right-angle coupler inside vertical rod, middle
Longitudinal cross bar fix with little cross bar, spacing is not more than 400mm.
4) fastener uses malleable cast iron to make, and specification must be outer with steel pipe through identical, and fastening bolt tightens torsion away from the least
In 40N M, and no more than 65N M, at host node, fix the phase of the central point of the various fasteners of large and small cross bar Crossing brace etc.
Mutual edge distance is not more than 150, and fastener side edge thereof distance is stretched out not less than 100 in each rod member termination.
(6) reinforcement installation
After cleaning up template, carry out reinforcing bar binding according to drawing.
(7) concreting
Carry out strong concrete after treating the whole colligation of reinforcing bar to pour.
The present invention provides a kind of strong concrete, including the composition of following parts by weight: cement 100 parts, water 90-120
Part, nemalite 10-25 part, quartz sand 15-20 part, Kaolin 10-18 part, ferrum oxide 10-15 part, sulfamic acid sodium 11-
18 parts, tert-butyl acrylate 9-18 part, glyceryl tristearate 12-24 part.
The preparation method of described strong concrete, comprises the following steps:
1), first the stirring of cement, water, nemalite, quartz sand and tert-butyl acrylate is made its mix homogeneously；
2), Kaolin, ferrum oxide stirring are made its mix homogeneously, be then added in the blending ingredients that step (1) obtains, stir
Mix and make its mix homogeneously；
3), adding in the blending ingredients that step (2) obtains by sulfamic acid sodium, glyceryl tristearate, stirring makes it mix all
Even, obtain strong concrete.
(8) simply supported beam form bracing system is removed
After fire-fighting gallery structure reaches design requirement, I-steel support system is removed.
Beneficial effects of the present invention:
Because support system deadweight, construction loads and reinforcing bar and weight concrete are relatively big, more than the I-steel support system of encorbelmenting of 2m
It is difficult to ensure that the stability of supporting construction and safety, this technique, by setting up simply supported beam, reduces support system cantilever span, subtracts
Few moment, thus shorten support body cantilever span, reach to meet the form bracing system supporting load.
Quality aspect: this engineering method uses freely-supported I-steel support system, and supporting construction is more reliable and more stable.
Secure context: workman can complete the installation of freely-supported I-steel in indoor, is complete reliable frame during outdoor work
Body support system, construction safety.
Technical elements: this engineering method, by setting up freely-supported I-steel, reduces I-steel cantilever span of encorbelmenting, reduces I-steel and hangs
Choose moment, make the form bracing system that can bear bigger load, meet construction requirement.
Economic aspect: this engineering method easy construction and more saving time, saves a large amount of people compared to traditional pin hand cradle support scheme
Work and duration.
Detailed description of the invention
Embodiment 1
The simply supported beam method that the present embodiment provides is encorbelmented vestibule form bracing system construction technology, comprises the following steps:
(1) I-steel pressure ring of encorbelmenting is pre-buried
Needing to install the floor of I-steel of encorbelmenting, to carry out pressure ring in advance pre-buried, U-shaped reinforcing bar draw ring diameter 16mm.
(2) freely-supported I-steel selects, welds
According to drawing and design requirement, select two 20a# I-steel of sufficient length to stack and arrange as freely-supported I-steel, by two
Root I-steel firm welding forms entirety.
(3) freely-supported I-steel lifting
Utilize tower crane that the I-steel welded lifting is set up the floor of I-steel of encorbelmenting to needs and is fixed, take with structure
Spreading degree 400mm, it is ensured that freely-supported I-steel stability in the large.
(4) I-steel of encorbelmenting lifts
I-steel of encorbelmenting lifts successively to installing I-steel floor, and is ridden upon front end on freely-supported I-steel, and end is adopted
Fix with the most pre-buried good pressure ring.
(5) form bracing system is set up
1) steel bar end of a length of 50mm diameter phi 25 of support shuttering vertical rod base employing is welded on and encorbelments on I-steel, sets up frame
Vertical rod being inserted in during body, effectively prevent vertical rod from moving, then add bar of sweeping the floor, the steel pipe scaffold stability of support shuttering is had
Effect controls.
2) inclination angle of bridging brace and horizontal plane is between 45 °-60 °.Bridging is with vertical rod, vertical and horizontal horizon bar
Set up Deng synchronization.Brace rotary buckle buckles with vertical rod or transverse horizontal bar.
3) vertically and horizontally horizon bar right-angle coupler is buckled on column, stretches out inside and outside vertical rod no less than 100mm, vertical equity bar
Being placed in above transverse horizontal bar, longitudinal cross bar of inner outer vertical rod is fixed with vertical rod with right-angle coupler inside vertical rod, middle
Longitudinal cross bar fix with little cross bar, spacing is not more than 400mm.
4) fastener uses malleable cast iron to make, and specification must be outer with steel pipe through identical, and fastening bolt tightens torsion away from the least
In 40N M, and no more than 65N M, at host node, fix the phase of the central point of the various fasteners of large and small cross bar Crossing brace etc.
Mutual edge distance is not more than 150mm, and fastener side edge thereof distance is stretched out not less than 100mm in each rod member termination.
(6) reinforcement installation
After cleaning up template, carry out reinforcing bar binding according to drawing.
(7) concreting
Concreting is carried out after treating the whole colligation of reinforcing bar.
Strong concrete, including the composition of following parts by weight: cement 100 parts, water 90-120 part, nemalite
10-25 part, quartz sand 15-20 part, Kaolin 10-18 part, ferrum oxide 10-15 part, sulfamic acid sodium 11-18 part, acrylic acid uncle
Butyl ester 9-18 part, glyceryl tristearate 12-24 part.
The preparation method of described strong concrete, comprises the following steps:
1), first the stirring of cement, water, nemalite, quartz sand and tert-butyl acrylate is made its mix homogeneously；
2), Kaolin, ferrum oxide stirring are made its mix homogeneously, be then added in the blending ingredients that step (1) obtains, stir
Mix and make its mix homogeneously；
3), adding in the blending ingredients that step (2) obtains by sulfamic acid sodium, glyceryl tristearate, stirring makes it mix all
Even, obtain strong concrete.
(8) simply supported beam form bracing system is removed
After fire-fighting gallery structure reaches design requirement, I-steel support system is removed.
Concrete embodiment 1 prepared is according to " normal concrete long-term behaviour and durability test method standard " GB/
T50082-2009 detects its comprcssive strength and rupture strength, and each pilot project takes 3 samples, and result of the test meansigma methods sees below
Table.
| Project | Test 1 | Test 2 | Test 3 |
| Rupture strength (MPa) | 63 | 65 | 62 |
| Comprcssive strength (MPa) 28d | 126 | 128 | 124 |
From the results, it was seen that the structure glue intensity that the present invention provides is high, good toughness, there is good tension, bending resistance, anti-
Pressure performance.
Claims (1)
1. simply supported beam method is encorbelmented vestibule form bracing system construction technology, it is characterised in that comprise the following steps:
(1) I-steel pressure ring of encorbelmenting is pre-buried
Needing to install the floor of I-steel of encorbelmenting, to carry out pressure ring in advance pre-buried, U-shaped reinforcing bar draw ring diameter 16mm；
(2) freely-supported I-steel selects, welds
According to drawing and design requirement, select two 20a# I-steel of sufficient length to stack and arrange as freely-supported I-steel, by two
Root I-steel firm welding forms entirety；
(3) freely-supported I-steel lifting
Utilize tower crane that the I-steel welded lifting is set up the floor of I-steel of encorbelmenting to needs and is fixed, take with structure
Spreading degree 400mm, it is ensured that freely-supported I-steel stability in the large；
(4) I-steel of encorbelmenting lifts
I-steel of encorbelmenting lifts successively to installing I-steel floor, and is ridden upon front end on freely-supported I-steel, and end is adopted
Fix with the most pre-buried good pressure ring；
(5) form bracing system is set up
1) steel bar end of a length of 50mm diameter phi 25 of support shuttering vertical rod base employing is welded on and encorbelments on I-steel, sets up frame
Vertical rod being inserted in during body, then add bar of sweeping the floor, the steel pipe scaffold stability of support shuttering is effectively controlled；
2) inclination angle of bridging brace and horizontal plane is between 45 °-60 °；Bridging is equal to vertical rod, vertical and horizontal horizon bar
Step is set up；Brace rotary buckle buckles with vertical rod or transverse horizontal bar；
3) vertically and horizontally horizon bar right-angle coupler is buckled on column, stretches out inside and outside vertical rod and disposes no less than 100mm, vertical equity bar
On transverse horizontal bar, longitudinal cross bar of inner outer vertical rod is fixed with vertical rod with right-angle coupler inside vertical rod, and middle is vertical
Fixing with little cross bar to cross bar, spacing is not more than 400mm；
4) fastener uses malleable cast iron to make, and specification must be outer with steel pipe through identical, and fastening bolt tightens torsion away from being not less than
40N M, and no more than 65N M, fix central point mutual of the various fasteners of large and small cross bar Crossing brace etc. at host node
Distance no more than 150mm, fastener side edge thereof distance is stretched out not less than 100 mm in each rod member termination；
(6) reinforcement installation
After cleaning up template, carry out reinforcing bar binding according to drawing；
(7) concreting
Pouring of strong concrete is carried out after treating the whole colligation of reinforcing bar；
The strong concrete poured, including the composition of following parts by weight: cement 100 parts, water 90-120 part, nemalite
10-25 part, quartz sand 15-20 part, Kaolin 10-18 part, ferrum oxide 10-15 part, sulfamic acid sodium 11-18 part, acrylic acid uncle
Butyl ester 9-18 part, glyceryl tristearate 12-24 part；The preparation method of described strong concrete, comprises the following steps:
1), first the stirring of cement, water, nemalite, quartz sand and tert-butyl acrylate is made its mix homogeneously；
2), Kaolin, ferrum oxide stirring are made its mix homogeneously, be then added in the blending ingredients that step (1) obtains, stir
Mix and make its mix homogeneously；
3), adding in the blending ingredients that step (2) obtains by sulfamic acid sodium, glyceryl tristearate, stirring makes it mix all
Even, obtain strong concrete；
(8) simply supported beam form bracing system is removed
After fire-fighting gallery structure reaches design requirement, I-steel support system is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610461793.6A CN106088313A (en) | 2016-06-23 | 2016-06-23 | Simply supported beam method is encorbelmented vestibule form bracing system construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610461793.6A CN106088313A (en) | 2016-06-23 | 2016-06-23 | Simply supported beam method is encorbelmented vestibule form bracing system construction technology |
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| Publication Number | Publication Date |
|---|---|
| CN106088313A true CN106088313A (en) | 2016-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610461793.6A Pending CN106088313A (en) | 2016-06-23 | 2016-06-23 | Simply supported beam method is encorbelmented vestibule form bracing system construction technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056005A (en) * | 2019-04-30 | 2019-07-26 | 云南大力神金属构件有限公司 | Subway side wall is constructed to topmast support system |
| CN114922186A (en) * | 2022-06-13 | 2022-08-19 | 中交四航局第二工程有限公司 | Large-diameter arc overhanging type breast wall template system and construction method |
| CN115387474A (en) * | 2022-09-20 | 2022-11-25 | 上海建工四建集团有限公司 | Special-shaped oversized overhanging concrete structure and construction method thereof |
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| CN201605670U (en) * | 2010-03-12 | 2010-10-13 | 张剑 | Rigid connection node of concrete-filled tubular column and reinforced concrete beam |
| CN201915630U (en) * | 2010-11-19 | 2011-08-03 | 二十二冶集团第一建设有限公司 | Combined platform of fire control joint gallery form supporting steel beam |
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2016
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Patent Citations (5)
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| JP2004132038A (en) * | 2002-10-10 | 2004-04-30 | Sumitomo Metal Ind Ltd | Alc floor and wall structure |
| CN201605670U (en) * | 2010-03-12 | 2010-10-13 | 张剑 | Rigid connection node of concrete-filled tubular column and reinforced concrete beam |
| CN201915630U (en) * | 2010-11-19 | 2011-08-03 | 二十二冶集团第一建设有限公司 | Combined platform of fire control joint gallery form supporting steel beam |
| CN203755670U (en) * | 2014-02-28 | 2014-08-06 | 山西四建集团有限公司 | Overhanging fire control corridor supporting structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056005A (en) * | 2019-04-30 | 2019-07-26 | 云南大力神金属构件有限公司 | Subway side wall is constructed to topmast support system |
| CN114922186A (en) * | 2022-06-13 | 2022-08-19 | 中交四航局第二工程有限公司 | Large-diameter arc overhanging type breast wall template system and construction method |
| CN114922186B (en) * | 2022-06-13 | 2023-11-21 | 中交四航局第二工程有限公司 | Large-diameter arc overhanging type breast wall template system and construction method |
| CN115387474A (en) * | 2022-09-20 | 2022-11-25 | 上海建工四建集团有限公司 | Special-shaped oversized overhanging concrete structure and construction method thereof |
| CN115387474B (en) * | 2022-09-20 | 2023-06-27 | 上海建工四建集团有限公司 | Special-shaped oversized overhanging concrete structure and construction method thereof |
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Application publication date: 20161109 |